PRIME Agents are the most active and successful agents in our network. They constantly give the greatest service and get the best outcomes for RealEstateAgent.com clients.
CaliforniaLong BeachCostanza Genoese Zerbi
12 years of experience
63 sales in last 12 months
600 transactions all-time
Achievements
Top Producer 2025
Top Listing Agent 2025
Top Volume Producer 2025
Business Highlights
Luxury home specialist
Offers customized solutions
12 years in business
Free consultations
REALTOR® certified
In the top 500 Agents in the US (volume)
Top 5 Agent in LA County consistently last 5 years
Top producer in sides and volume in office of 200 agents
5 Star on Google
About Costanza
About
Costanza Genoese Zerbi is a Broker Associate with eXp Realty of Greater Los Angeles and founder of Costanza Genoese Zerbi & Associates in Long Beach. RealTrends has ranked her in the top 1.5% of agents nationwide every year since 2017, and she was #1 in Long Beach by sales volume in the RealTrends 2024 rankings. Since 2014 she has closed more than 600 transactions and over $525 million in sales across Long Beach, the South Bay, Orange County and greater Los Angeles.
She holds a BA with High Honors from UC Berkeley and an MBA from UCLA Anderson, and brings a marketing and business strategy background to pricing and negotiation. She specializes in seller representation and trust, estate and downsizing sales, working side by side with Neil Edmonds.
Neighborhoods: Belmont Shore, Naples, Bluff Park, Bixby Knolls, California Heights and Los Altos.
DRE #01941438 (562) 221-4527 costanzagz.com
Hobbies
Food & Cooking, Gardening, Health & Wellness, Sports, Travel
Education
Master's Degree, UCLA
Professional Information
Brokerage
Costanza Genoese Zerbi & Associates
1650 Ximeno #300
Long Beach, CA 90804
Real Estate License
01941438 (California), Broker
Languages
English, Italian
Specialties & Awards
Overview
Costanza Genoese Zerbi | RealTrends Ranked in the Top 1.5% Since 2017 | Long Beach & South Bay
Specialties
1031 Tax Exchange
Concierge Services
Buyer Representative
Multi-Family Homes
Luxury Properties
First Time Buyers
Distressed Properties
Relocation
Seller Representative
Single-Family Homes
VA loans
Awards
Top 1% of Agents (Realtrends)
Costanza Genoese Zerbi's Video
Costanza Genoese Zerbi's Reviews (1)
All
All
Seller
Buyer
Default
Default
Newest First
Oldest First
Highest Rated First
Lowest Rated First
Highly likely to recommend
5.0
Review Date
08/26/2026
Customer
Alberto bought a home in Los Angeles
Costanza treated us like we are her most important clients. Very communicative, proactive, and provided a lot of guidance and advice that helped us get the right home, not just the first home we saw and without compromising what was important to us. I couldn't recommend her enough!
Usually responds in 5 minutes
Open 24 hours